A 'remark' is information that is not an error or a warning, but rather some
additional information provided to the user. In contrast to a 'note' a 'remark'
is an independent diagnostic, whereas a 'note' always depends on another
diagnostic.

A typical use case for remark nodes is information provided to the user, e.g.
information provided by the vectorizer about loops that have been vectorized.

This patch provides the initial implementation of 'remarks'. It includes the
actual definiton of the remark nodes, their printing as well as basic parameter
handling. We are reusing the existing diagnostic parameters which means a remark
can be enabled with normal '-Wdiagnostic-name' flags and can be upgraded to
an error using '-Werror=diagnostic-name'. '-Werror' alone does not upgrade
remarks.

This patch is by intention minimal in terms of parameter handling. More
experience and more discussions will most likely lead to further enhancements
in the parameter handling.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@202475 91177308-0d34-0410-b5e6-96231b3b80d8

Implements a declarative approach to documenting individual attributes in Clang via a Documentation tablegen class. Also updates the internals manual with information about how to use this new, required, documentation feature.

This patch adds some very, very sparse initial documentation for some attributes. Additional effort from attribute authors is greatly appreciated.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@201515 91177308-0d34-0410-b5e6-96231b3b80d8

Adding a bit of documentation that was missed with r198883 (when ParseArgumentsAsUnevaluated was added).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@199679 91177308-0d34-0410-b5e6-96231b3b80d8

Exposed a declarative way to specify that an attribute can be duplicated when merging attributes on a declaration. This replaces some hard-coded functionality from Sema.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@199677 91177308-0d34-0410-b5e6-96231b3b80d8

Updating the documentation about how to add attributes based on the rather extensive refactorings that have happened over the past several months.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@198705 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191560 91177308-0d34-0410-b5e6-96231b3b80d8

C++ operators are represented by CXXOperatorName now, which is already
documented.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@191559 91177308-0d34-0410-b5e6-96231b3b80d8

[[gnu::...]] syntax

Pointed out by Richard Smith on the mailing list.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172487 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171382 91177308-0d34-0410-b5e6-96231b3b80d8

highlight console output with "code-block:: console", etc.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170276 91177308-0d34-0410-b5e6-96231b3b80d8

Patch by Anastasi Voitova with with small fixes by me.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170275 91177308-0d34-0410-b5e6-96231b3b80d8